Catholic Church. Pontificia Commissio de Spirituali Migratorum atque Itinerantium Cura. (1978). Letter to episcopal conferences on the Church and people on the move: May 4, 1978. United States Catholic Conference.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Catholic Church. Pontificia Commissio de Spirituali Migratorum atque Itinerantium Cura. Letter to Episcopal Conferences on the Church and People on the Move: May 4, 1978. Washington: United States Catholic Conference, 1978.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Catholic Church. Pontificia Commissio de Spirituali Migratorum atque Itinerantium Cura. Letter to Episcopal Conferences on the Church and People on the Move: May 4, 1978. United States Catholic Conference, 1978.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.